APR Stage 1 horsepower gains
APR’s Stage 1 pump-gas figures are shown below. Choose the row for your fuel grade and exact engine version.
| Calibration / version | Required fuel (U.S. octane) | APR total output | APR maximum horsepower gain |
|---|---|---|---|
| ECU Upgrade | 91 AKI | 452 HP | +39 HP |
| ECU Upgrade | 93 AKI | 459 HP | +46 HP |
APR describes the gains for this tune as wheel-horsepower gains. Total output and maximum gain are separate figures; maximum gain is not the difference between the two peak horsepower ratings.
Results vary with fuel quality, vehicle condition, hardware and test conditions. Use the fuel required by the installed APR calibration; verify the exact ECU application before installation.
Vehicle fitment
Find your vehicle below, then match the engine, chassis, trim and controller requirements for this specific APR tune. Vehicle names in the title are a summary; compatibility is limited to the applications and conditions shown here.
| Vehicle | Years | Chassis | Engine | Configuration / market | Requirements |
|---|---|---|---|---|---|
| Porsche 718 Cayman | 2020–2023 | 982 | 9A2 / 9A2 4.0L | GT4; Coupe · Confirm original market | See fitment requirements below. |
| Porsche 718 Boxster / 718 Spyder | 2020–2023 | 982 | 9A2 / 9A2 4.0L | Spyder; Convertible · Confirm original market | See fitment requirements below. |
Fitment requirements
- Naturally aspirated 4.0 GT4/Spyder; GT4 RS and Spyder RS excluded. Confirm exact ECU/TCU box code, software revision, fuel grade and required hardware with APR before installation. A vehicle/engine match alone does not confirm software availability.
- US-model-year scope: 2020–2023 non-RS GT4/Spyder. PDK starts in 2021; 2020 is manual only. GT4 RS and Spyder RS are excluded.
Install Methods
Note: You'll purchase the tune during the install.
Features:
- Delivers up to 452-488 HP with 340-361 FT-LBS of torque
- Max gains of +39-75 WHP with +30-51 WFT-LBS of torque
- Supports 91 AKI, 93 AKI, 100 AKI, 104 AKI, and E60-E85 fuel grades
- Ethanol and race fuel support for maximum power on the race track
- Rev limiter increased to 8,300 RPM
- Standing and neutral rev limiter increased to 6,500 RPM
- Sport exhaust button fully opens and closes the exhaust flaps
- Closed exhaust flaps open fully at wide open throttle above 4,500 RPM
- Exhaust crackle added in park and neutral (optional)
- Track optimized thermal management with added safety protection routines enabled
- Proper HP and TQ values transmitted to the dash
- No hardware required (Software only)
- Supports standard bolt on modifications
- Works seamlessly with our PDK TCU Upgrade
- Free lifetime updates
- Direct OBDII port flash (No ECU removal)
- 30 day money back guarantee